/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dtstack.flink.sql.sink.solr;

import com.dtstack.flink.sql.sink.IStreamSinkGener;
import com.dtstack.flink.sql.sink.solr.options.KerberosOptions;
import com.dtstack.flink.sql.sink.solr.options.SolrClientOptions;
import com.dtstack.flink.sql.sink.solr.options.SolrWriteOptions;
import com.dtstack.flink.sql.sink.solr.table.SolrTableInfo;
import com.dtstack.flink.sql.table.AbstractTargetTableInfo;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.api.java.typeutils.RowTypeInfo;
import org.apache.flink.api.java.typeutils.TupleTypeInfo;
import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.streaming.api.datastream.DataStreamSink;
import org.apache.flink.streaming.api.functions.sink.OutputFormatSinkFunction;
import org.apache.flink.streaming.api.functions.sink.RichSinkFunction;
import org.apache.flink.table.sinks.RetractStreamTableSink;
import org.apache.flink.table.sinks.TableSink;
import org.apache.flink.types.Row;

import java.io.Serializable;

/**
 * @author wuren
 * @program flinkStreamSQL
 * @create 2021/05/17
 */
public class SolrSink
        implements RetractStreamTableSink<Row>, Serializable, IStreamSinkGener<SolrSink> {

    private SolrClientOptions solrClientOptions;
    private SolrWriteOptions solrWriteOptions;
    private KerberosOptions kerberosOptions;

    protected String[] fieldNames;
    TypeInformation<?>[] fieldTypes;

    @Override
    public SolrSink genStreamSink(AbstractTargetTableInfo targetTableInfo) {
        SolrTableInfo solrTableInfo = (SolrTableInfo) targetTableInfo;
        solrClientOptions = solrTableInfo.getSolrClientOptions();
        solrWriteOptions = solrTableInfo.getSolrWriteOptions();
        kerberosOptions = solrTableInfo.getKerberosOptions();
        return this;
    }

    @Override
    public void emitDataStream(DataStream<Tuple2<Boolean, Row>> dataStream) {
        consumeDataStream(dataStream);
    }

    @Override
    public DataStreamSink<Tuple2<Boolean, Row>> consumeDataStream(
            DataStream<Tuple2<Boolean, Row>> dataStream) {
        SolrOutputFormat solrOutputFormat =
                new SolrOutputFormat(
                        solrClientOptions, solrWriteOptions, kerberosOptions, fieldNames);
        String tableName = solrClientOptions.getCollection();
        int parallelism = solrWriteOptions.getParallelism();
        RichSinkFunction richSinkFunction = new OutputFormatSinkFunction(solrOutputFormat);
        DataStreamSink dataStreamSink = dataStream.addSink(richSinkFunction);
        dataStreamSink.name(tableName);
        if (parallelism > 0) {
            dataStreamSink.setParallelism(parallelism);
        }
        return dataStreamSink;
    }

    @Override
    public TableSink<Tuple2<Boolean, Row>> configure(
            String[] fieldNames, TypeInformation<?>[] fieldTypes) {
        this.fieldNames = fieldNames;
        this.fieldTypes = fieldTypes;
        return this;
    }

    @Override
    public TupleTypeInfo<Tuple2<Boolean, Row>> getOutputType() {
        return new TupleTypeInfo(org.apache.flink.table.api.Types.BOOLEAN(), getRecordType());
    }

    @Override
    public TypeInformation<Row> getRecordType() {
        return new RowTypeInfo(fieldTypes, fieldNames);
    }

    @Override
    public String[] getFieldNames() {
        return fieldNames;
    }

    @Override
    public TypeInformation<?>[] getFieldTypes() {
        return fieldTypes;
    }
}
